Wrapper-tabbing mechanism



Dec. 21 1926.

J. s. sToK'E's WRAPPER TABBING 'MECHANISM Jeff/Ves. slums. BY

ATTORNEY.

Dec. 21 1 926.

J. S. STOKES WHAPPER TABBING MECHANISM INVENTOR. JOHN S. STOI'ES Goff ATTORNEY.

mik

[7g4lv Dec. 21 1926. l,61T`,693

` J. s. s'roKr-:s

wnAPPER TABBING Mscmmxsm Filed Marron 25, 192e 4 sheets-sheet s INVENToR. ./oH/V 6. mms.

www. 522/ l ATTORNEY.

l Dec; 21 1926,

71,611,693 J. s. sToKEs K WRAPPER TABBING MEI-IANISII rusa March 25. 1926 4 spans-sheet 4 x l y Y mVENToR. li I Jay/v3. swims. .i BY Ew In l {Mild-@ l, ATTORNEY.

Patented Dec. 21, 1926.

UNITED STATES PATENT OFFICE.

JOHN S. STORES, OF-HUNTINGDON VALLEY, PENNSYLVANIA, ASSIGNOB TO STORES AND SMITH COMPANY, F PHILADELPHIA, PENN BYLVANIA, A CORPORATION OF PENNsYLvANI.

waarna-manine micna'irrsm.

Application ,tiled March 25, 1926. Serial No. 97,198.

My invention relates to mechanism for appl ing-individual sheets, wrap ers, labels- (C boxes. A

In accordance withiny invention, in suitable adhesive-ap lying mechanism there 1s 'ap lied to an 1n ividual wrapper a coat of ad esive, as glue or equivalcntand, before -partly in4 section, showing a coated tabbe the adhesive driesor sets, the Wrap er is suitably conveyed into co-acting successively with .mechanisms uti izable, respectively, for applying to the coated wrapper-surface reinforcin Vtabs or elements and for coating with adh sive, the exposed tab surfaces, whereupon, before the adhesive coatings upon the wrapper and tabs dry or set, the individual tabbed wrapper isapplied to-abox by suitable mechanism, as a 4wrapping machine whereby the box is simultaneously stayed and Wrapped.

More particularly in accordance with my invention, either or both ofthe-tabbing and fected without pause in the movement of the wrapper as it is conveyed from the adhesive-applyinr mechanism toward the Wrapping mac iine. f

Further in accordance with my invention, there are provided distinct units or mechanisms for effecting the yarious coating, tabf hing and conveying operations, allof which operate inv timed relation one with the other and with the Wrapping machine.

My invention re ates to one type of agparutus utilizable for performing the met od disclosed in my prior application, Serial No. 81,175, tiled January 14, 1926.

My invention Aresides -m apparatus of the character hereinafter described and claimed.

For an illustration of one of the various forins mv inventionmay take, reference is to be had to the accompanying drawing in `which: I

. Fig. 1 is a side elevational View, partly in section, of apparatus constructed in accordance with my invention. y

2'is a side elevational view, partly in section, illustrating details of construction of the tabhing and tab-coating mechanisms.

re ation v3 is a side elevational view, partl in section, showing a part, of the tab ing mechanism illustrated in Fig. 2.v

Fig. 4 is a 1an view, certain parts omitted of the apparatus illustrated in Fig..2.

part y in section, s owing a wrapper-conveyin mechanismreceivin a wrapper from the a hesive-applying mecanism. Fig. 6 is a plan view of the apparatus Shown in Fig. 5.

Fig. 7 is an enlarged elevational view wrapper at the time of its transfer to the conveying mechanism of the conveyor unit. Fig. 8 is a side elevational view, partly in section, Oshowing a wrapper-gripper comprised in the conveying unit.

Fig. 9 is a sectional view 'showing one manner of attaching a stencil to its supportin disk. l

Fig. 10 is a sectional view illustrating one manner of supporting a wrapper as it is passed into co-actin tabbing and tab-coating mechanisms.

Fig. 11 is a'plan view of a wrapper having tabs applied thereto by mechanism herein disclosed.

Referring to the drawings .and articularl Fig. 1, there is illustrated an a hesive- .app ying unit G, mechanism generically in- 5 is an enlar ed side elevational view,`

engagement with the per and ap lying adhesive to the ex osed surface of tie tabs, a conveying unit and a wrapping unit W.

'I lie adhesve-applyn unit G may be of any suitable type ca a le of applying adhesive to wrappers o box-wra ing paper, or other suitable inat'erial, and diliverin the coated wrappers in succession referab at uniform intervals. For examp e, the unit G may be of the same general type disclosed in Nitsch and Federwitz Letters Patent No. 1,472,614, granted October 30, 1923, or in Fcderwitz t Bailey application Seria-l No. 40,769, filed JulyV 1, 1925, or in thel Nitsch and Weiglitman application Serial N o. 69,- 249 filed November 16, 1925.

'libe tabbin unit or mechanism T may be of the genera character as disclosed, for example, in United States Letters Patent to Reifsnyder and Schwerdtle, No. 1,060,026,

The adhesive-applying mechanism.

In the exam le illustrated, the adhesiveapplyin unit is Vof the same eneral t Vpe disclose in the aforesaid Nitsc `d'. Fe er,- witz Letters Patent, No, 1,472,614. Unit G is driven at suitable speed by anysuita'ble source of power and at predetermined intervals the suction roller 1 functions to deliver singlerwrappers Si' in succession from the "stack 2 of unglued wrappers ythrough the rotary feed rol mechanismdesignated' gcnerally at 3 into engagement with the glue distributing roll 4 which engages the glue drum 5 so mounted as tp rotate' with its lower surface immersed lin adhesive contained in the rece tacle 6. As Well understood in' the art, t e glue distributing Vroll 4 by engaging the glue drum 5 has ap lied to its surface an adhesive coating w ich in 1turn is ap lied to individual wrappers as they are ed into en agement therewith through the rotary fee roll mechanism 3.' As viewed in Fig. 5, the glue distributing roll 4 rotates in a' counter-clockvvisel direc-A 4tion and 'carries the advanced edge of a 'wrapper S into engagement with Vthe strip- ,per members 6u which vthe, --Wrapper ltoward Wrapper-gripping and conveying mechanism bf a character herc- .45

inafter fully described.

@he-sheet .conveying mechanism fr the tabhing apparatus. V V

Asf viewed in Figs. l-wand4 2, the side frames F' of the adhesive-applying unit G extend upwardly above the coating mechan'ism comprised in 'said unit and are' secured in suitable mann-er, asby the'bolts 7 ,-Fig.

"2,'to the side frames.' F1. of theijtabbing"apparatus or mech-aniSm, the latter-"compris" ingthe transverse supporting'or tying'r'nem.-

bB-IS 4 l Y i Within the frames F,''ajshaft9 jornaled in the 4auxiliary pivotal-ly-mountedframes f Vcarries a pair' of "sprockets-'or fthe like `1U`and 10", respectively, driving' the'l chains-j bands Aidler sprbckets'i12 andf12fgmountedpn a' shaft 1 3 journaled'n bearings v.in the frames function to 'deflect F1 adjacent the receiving end of the convey ingunit` C. y

cferring to Fig. ,1, the shaft 14, Amounted in bearings in the frame members F of the adhesive-applying unit, is the usual member controllin intermittent step-by-step movement of tie usual Wrapper-conveying belt structure of such unit. Shaft 14, as well understood in the art, is rotated only during each cycle of operation of the adhesive-applying unit, and has heretofore been utilized to advancethebelt structure of the unit just after a wrapper lhas left the glue-distribut- 4 ing iroll and been -deposited on said belt structure Shaft 14 carries a gear 15 4.meshing with an idler gear 16, in turn meshin with an idler gear 17, which meshes Wit 1 and drives a gear 18 keyed to the 4shaft 9 carrying the sprockets 10 and 10. Accordingly, foieach cycle of o eration of the adhesiye-applying unit G, tlie upper and lower spans of the A'chains 11 and 11'a are advanced ingthe. direction of the respective arrows,

Fi 1. t hains 11 and 1l in the ezampleshown,

eachcarry a pair ofI Wiapper-grippe-rs which may be of'any suitable character, for example, as shown in the aforesaid Federwitz t and"\ailey application, Serial No, 40,769. However, and as shown particularly in Figs. 5 and 6, eachvgrpper V comprises a base member 19 carried by a link pin of the chain and .a member 20 pii'ted on the next adjacent chain link pin, Member 20 comprises an arm 21 and a gripper palm 22, each biased in a counter-clockwise direction, Fig. -5, by a coil spring 23 or the like interposed between a portion of men'lbcr 19 Aand the member" '20. Wrapper-grippers V on the two chains 11 and 11'l are '1n transverse alignment, and, in the example shown, with a gripper secured in position on one chain, the other gripper is so located orr the same chain that the distance between them will be the Isame no 'matter in which direction measurement is effected from thtl gripper first fixed in position.

lui-

Bet'ween thesprocket chains 11 and 11*4 and suitably fixed in position are the members or abutments 24 and 25, Figs. 5, 6 and 7 for actuating the pivoted members 20 of each'gripper V to open the same. An abutment 24 carried by a member 24*l suitably s'ecured to the transverse lnemberscof frame f is located adjacent each chain 11 andllfl in the path of arm21 of each gripper V while a 'similar abutment 25, Fig.` 7, suitably `held in position by structure, not shown, .is44 located in the path of arm 21 of each ripper V adjacent the v'eyorl unit C.

receiving end of t e conlas In Fig. 5, there is illustrated a grip. er V' inVA the position assumed thereby whi e the chain carryinv-the same is at rest.l This gripper, 'and the one in transverse alignment described above, the upper spans of the chains are moved toward the right, Fig. 5. But slight movement is necessary to free arms 21 from abutments 24 whereupon a'hns 22 move into gripping engagement with the `,top surface of the wrapper whose bottom surface engages base members 19 and the wrapper is now transported toward the receiving end of the conveying unit C. Preterably," without pause in its journey, the coated wrapper is suitably reinforced or tabbed, and the exposed faces-of the tabs covered with adhesive as hereinafter more fully described, and, as ther-wrapper is moved into engagement with the awaiting grippingmechanism at the receiving end of the -conveying unit C, arms 2'1 of .grippers V move into engagementl with abutments 25 to re.

lease the coated tabbed Wrapper, said rippers continuing their movement Wit lout anse until they reach the position indicated by broken lines at the lower right corner of Fig. 7 when rotation of shaft 14 is automatically discontinued and movement of the chains 11 and 111 ceases. By this operation, it will be observed that the other pair of grippers V have been moved into the position of Fi 5, and are. now open and awaitinr the elivery of another wrapper which will soon be advanced'thereinto by the feed roll mechanism 3.

The frames f, Fig. 4, com rise a transverse memberV or rod 26 su stantially in horizontal alignment with shaft 9 pivotally mounted in side frames F of the adhesiveapplying unit G. Rotatably mounted on rod 26 are a number of spaced pulleys 27 on each of which is mounted a belt 28 or the' like. Pulleys 29 secured to and driven by shaft 9 likewise receive the belts 28, which,

accordingly, rotate during movement of chains 11 and 11'* and in the same direction y to rform a support movable with and at the same speed as that ofthe wrap er.

From lthe belts 28, the coate wrapper is carried by chains `11 and 11 onto a plurality of bridging or guiding members30 spanning the gap between bfelt 28 and the receiving 'end of'the conveyor unit C.' In the exam le showin. members 30 are supportedb on fil dr blocks 31, Fig. 10, in turn supported Aon the transverseftie members 8. By. preference,

the centrall member 30 and its supporting block are noni'djustably fixed in position on said members 8 while theouter members 30 are a'djustably mounted for transverse movement with respect to frames F1. To this end, tie members 8 may be slotted as indicated at 32, Figs. 4 and 10, and to hold members 30 in adjusted positions, handles or heads 33 may be actuated to thread screws 34 into recesses in blocks 31.

The tabbz'ng mechanism.

A gear 35 intermittently rotated in timed relation with the adhesivefapplying unit G drives a gear 36 keyed to a shaft 37 rotatable in bearin4 s 38 mounted respectively 011 a frame F an a frame F1, Figs. 1 and 2. A bevel gear 39 secured to shaft 37 meshes with and drives a corresponding bevel gear 4() keyed to a shaft 41 mounted in bearings in the frames F1.

lVhen the coated wrapper is to be tabbed l or reinforced as indicated in Fig. 11,V thc tabsfa, and a1 are applied byone tabbing mechanism while the tabs I) and b1 are ap-l plied by another tabbing mechanism. In thc example illustrated, two tabbing mechanisms are mounted on shaft 41 and are du licates or substantially so. Accordingly, a' escription of one will suiiice for the other.

Referring to Figs. 2 and 3, there is illustrated a disk, wheel or the 1ike 42 carrying duplicate tab-gripping mechanisms, each functioning to convey a tab into engagement with 'the coated wrapper transported by chains 11 and 11u. Asshown particularly in Fig. 3, each tab-gripping mechanism comprises a late 43 adjustably secured to one side of dlsk 42 by a bolt 44 or the like passing through a circumferential T-groove or T-slot 44a in the disk, the head of bolt 44 be-y ing confined within the. wider-slot portion from which it may be removed through a l43 forms a bearing for a shaft or pin 45 to which is secured a member 46 having pivoted thereto a member 47 supporting the gripper finger 48, which at times co-opcrates with a member 49 for gripping a tab. A coil s )ring 50 orthe like biases member 47 and nger 48 in a clockwise direction, Fig. 3. Member 46 comprises an arm`151 carr ing at one end a roller 52 biased in a cloc rwise direction, Fig. 3, by a coil sprin 53, or equivalent, seater in a recess in pla e 43.

4Secured in the T-shaped slot 44 'of disk 42 by bolts 44 adjacent eachof the duplicate tab-gripping mechanisms are the gear segments V54 and cams 55. Also, secured in any suitable manner and in suitable position, as to the frames F1 are the cams 56 and 57, whiclvco-act with the rollers 52 to move Ithe arms 51 against the expansive force of llU into engagement with the feed rolls 63 and and sprin Y ed in a suitable manner, as on a shaft having from which the wrappers S are 4. Leinen l hing mechanism, a reel 58 on which has been Before the completion of the web-feedin r wound a web or ribbon fw of any material operationaforesaid, fixed cam 56 has rocket suitable for tabhing purposes, for example, arm 51 to move finger48 from member 49, a web or ribbon of pa er of a grade heavier, the position ot' the various parts being as lighter or of a weig t corresponding with indicated in Fig'. 3. As the end of the web the Weight of paper (when pa erl is used) w is fed downwardly, it is deflected by the ormed. The curved end'of plate 78 and assumes the potape w passes in succession over a tension sition illustrated in Fig. 3, at which time the ro l 59 supported on a pivotal arm 60, thence web is severed, as stated above. Immediately over the guiding rolls 61 and 62, roller 52 passes beyond cam 56 g 53 becomes elfective to rotate arm 64 mounted on shafts having `intermeshing 51 in a c ockwise direction, Fig. 3, where-` ears 63 and 64,'F i 3. Feed roll 63 may by finger 48 is snapped toward and into en-r Y e sup orted on a s idable member ,'65 engagement' with the tab now resting on memgaged y a trigger or the like 66 biased in a i ber 49. Spring 50 is ofcomparativ'ely-light counter-clockwise direction, Fig. 2, hy Weight, and when'used, its primary function and linally thereafter, 'l5

a co1l sprin 67 or the like confined on a rod 68 is that of permitting some relative movement linke to trigger 66. Qbviously, upon reof' nger 48 and member 47 'with respect to tracting trigger 66 against the expansive arm 51 whereby the shock of the im act beforce of spring 67, member and roll tween linger 48 and member 49 is a 'sorbed 63 may be withdrawn toward the left, Fig. `to some extent. A A 2, whereupon the end of tape fw may he' flheforegoing operation' occurs without.l passed below roll 64 and,when roll 63 and cessation in the rotary movement of disk member'65 are replaced, the feeding mecha- 42.v In a similar manner, the other tabbng nism will be in operative condition. v, meclmnismon disk 42 isv automatically sup- A gear 69, keyed to the shaft carrying roll plied with a tab, andthe two tabhing mecha'- 64, meshes with La gear 70 rotatablysupporrnisins without pause of disk 42-deposit or 'secure the talos to the coated surface of hearings in the frame extensions f1, said gear wrapper S while it moves from the left tocounter-clockwisedirection, Figs.

. 64.50 Afeed t "si-ve force of a coil spring succession engage a roll 7 1" on arm 71a. fWhen 71 is thus moved, an arm 73 p ivotedxto rod 71 is swung 1n ,wad t `e left, Fig. A2. In response to such per.

'latter'slidin'g on a plate 8.

-76 being altenately es a revolution by the gear' segments 54, as hereinafter more fully described. ,I A vrod 71.01" the like pivoted to an arm The parts are so 71n in turn pivoted to a frame f1 ismounted ward ertio'n of. the coated wra folj .'reciprocator extension f1 an may be moved alternately is'tobe applied reaches a point substantially in an upward directlonagainst the expan- 'vertically below lshaft 41,' Fig. 2, roller'52 72 or thelilre s uit- 4on arxrihlifengages fixed cam 57 to release Vably c 'oniinegl on said rod, when cams 55 in the tab fromtinger 48 and member 49. It

is intended that the tab release shall occur just as the advanced tab ede engages the a clockwise direccoated surface of wrapper member .49, rotate a shaftvv 74, then, having the function of ronin or wip# 75 is moved tol Lying thejalo into engagement with t e wraprotated through a part of `ward the jright under the control of p'air of transversely aligned grippers on -the :chains 11 and 11. l

timed that as the forper or the tion, ig. 2, to similarly. wherellii the e'nd of an arm l lu movement of arm 75, slidingenga'gement is i v,Continued movement vof the coated wrapeilected between the cutting elements 76 and per toward the right, Fig. 2, brin s the rear 77, the former,'in` the example shown, being portion thereof into position for Y e applicamounted' in'fa stations. manner and the -tion of thetab a, for example, which is ap- A plied in a manner similar. to that described I1U) Disk 42,V hyits driving connection deabove, by the other tabhing mechanism on scribed `above, is intermittently rotated in a disk 42. Y A

2 and 3. Obviously', by loosening the'holts 44, the The ear segment 54 comprised in one .of f tnbbing mechanisms mayl be adjusted cir the' tahllling mechanisms by cofaction `with 'cunifeientlally of d1sk 42, to vary the re ions 120 gear .70 im arts rotative movement to roll ,on the wrap lJerwherein the tabs are app ied. lie end of web wdownwardlyms "-"It shall' e understood, 1n the example 2 and33, aslliienb distanee',slimvi`1 and kas stated abovez that shaft 41 'tion lying below the cnt- 'carries-asimilar disk 42 equipped' with tah- -is of' the p'roper tab length.

web' has been thus' fed,- rcalin .55.'

viewed in p Figs. so that the 'webL ting'element 76 After the .with the similar ytalibirig mechanisms del engages' roll 71" and imparts reci rocatory 'scribeda'hove, to the end that tabs or reiner ,tabsd,b,` o and 51 have been ap- 130 movement on said frame 'area tfllereof to which the tab a1, or example, 100" hing mechanisms in transverse alignment l plied, the wrapper with its adhering tabs lli ' applied to the continues its movement toward the right, Fig. 2, and during such movementthere is exposed tabsurfaces a suitable coating of adhesive.

The tab-coating mechanism.

'Carried by the shaft 41 is a gear 79, Fig. 4, meshing' with and driving an idler gear 80 rotatably mounted on a stub shaft 81 carried by one of thelframes F1, said gear 8,0 meshing with anddriving a gear 82 keyed to a shaft -83 extending transversely of and rFotatably mounted in bearings in the frames Gear 82 on shaft 83 meshes with and drives the idler gear 84 mounted on a stub shaft 85 in a frame F1, the latter gear meshing with and drivin the corresponding idlergear 86 mounted on a second stub shaft A'87 carried by said frame F1, idler gear 86 meshing with and driving a gear 88 keyed to a shaft 89 carrying glue rolls 90, whose lotversurfaces are immersed in the adhesive or glue contained in a receptacle 91 mounted ona support 92 secured in suitable manner to the frames F1.

Carried by the shaft 83 are a pair of disks disk 93 b a bolt 96 or the like passing through t e stencil frame. and clamping a. member or plate 9 7 to the disk periphery and also to the stencil', Fig. 9.

By the train of gears described above, disk 93 and glue rolls 90 are rotated in unison with disk 42. Stencils 95, when moving with disk 93, are brought in succession into engagement with a glue roll 90 and have transferred to their outer curved surfaces coatings of adhesive from said glue drum.

It shall be understood that stencils 95 have been -adjusted along the periphery of disk 93 in such manner that as the tabs` on the wrapper pass a region vertically, or Substantially so, beneath shaft 83, they are engaged in' succession by the outer curved Vsurfaces of the stencils, with the result that there is applied to the exposed faces of such tabs a coating of adhesive. Disk 93, as viewed in F ig. 2, rotates in a counter-clockwise direction, and it may be assumed,

f therefore, that one stencil co-acts with tab a1 and .the other stencil co-acts with the tab a, Fig. 11. It shall be understood that the corresponding disk, not shown, similarly effecting more intimate engagement between the tabs and the coated wrapper.

The bridging members 30, Fig. 4, may be suitably adjustable in directions transversely`of the'machine to form supports for wrapper S in those regions thereof wherein tllie tabs are applied and coated as described a ove,

The foregoing tab-coating operation is performed without pause in the travel of the coated tabbed Wrapper toward the right, Fig 4. After a plication of the adhesive `coatings to the ta s, movement of the coated tabbe wrap r continues until it is released from the gri pers V on chains 11 and 11 and substantially simultaneously deposited in the awaiting gripping mechanism at the receiving end of the conveying unit C, as hereinafter more fully described.

The wrapping machine W and conveying mit 0. a

In the example illustrated, the wrapping machine W and the conve 'ng unit C are of the same character il ustrated in the aforesaid Federwitz and Bailey application, Serial No. 40,769.

Referring to Fig. 1, the wrap ing machine W comprises a pulley .98 riven by any suitable source of power, not shown, and, when engaged by the sldable clutch member 99, under the control of a lever 100, rotary movement is imparted to the shaft 101 which controls a cam, lnot shown, to imart reciprocatory movement to the upper orm block structure 102, the latter, at predetermined intervals, carrying a. box and the wrapper to be applied thereto into en gagement with Vthe lower form block structure 103both of said form block structures then carrying the box and wrapper downwardly through thevarious tools and other instrumentalities comprised in the wrapping machine to wrap the box, as well understood in the art. Y

Connected to the shaft 101 in suitable manner, as by the plates 104, is the shaft 105 carrying a gear 106 meshing with and 4driving a gear 107 mounted on a shaft 108 journaled in bearings in the frames of the conveyor unit C A cam 109 is likewise secured to shaft 108 and receives a roller 110 carried by an arm 111 pivotally mounted at one end on the frame of the conveyor unit .C and at its other end carrying a gear quadrant 112 meshing with a gear 113 mounted on a shaft' jonrnaled in bearings in the upper frames of the conveyor unit. f A gear 114 also secured to shaft 108 'meshes with and drives a gear 115-secured at one end to the shaft 116 having at its other end a gear 117 meshing with and driving a gear 118 mounted on a shaft 119 also rotatably supported in the upper frames of the conveyor unit., y

As clearly described in the aforesaid Fedi erwitz and Bailey application, Serial No.

40,769, the wrapping machine W and vconveying unit C operate in synchromsm, due to the fact that the power for both is obtained4 from a common drive shaft comprising, in the examples shown, the shafts 101 and 105 tied or coupled together by the plates 104. Due to this arrangement the' wrapper feeding mechanism of the convey 4 is in its upper region of travel. vTo this' end and asAdescribed in the aforesaid Federwitz.

and Bailey application, Serial No. 40,769, intermittent movement of chains 120 and 120 is eiected by the gear quadrant'112, which,

acting through gearing and other structure, not shown, and in timed relation with the reciprocating form block structure 102 functions to effect stepy-ste lmovement of said chains to intermittently eliver single wrappers below said form block structure 102, where they, are held as by structure disclosed in said Federwitzl andV Bailey application, Serial No. 40,769, until the box to be wrtlpped is moved into engagement therew1 One or more box-conveying bands, belts or the like 121, Fig. 1'continuously driven by any suitable mechanism, not shown, are

supplied with boxes B in any'su'table mannerand in single'le move toward the wrapping machine W, eachbox in turn engaging the release mechanis1nf122 which is intermittently Araised in'ti'med .relation with the form block structure 102. Afterrclease of a box the mechanism 122,l belt 121 carries it toward the wrapping machine and, upon reaching the end of the belt, drops onto the box-pusher bars-123 which are reciprocated in timedrelation with the form block strue-v ture 102 to deliver lthe box therebeneath' at substantially the same time that a wrapper is delive by the chains .1,20 and `120". When thus delivered, each box 'may be ternporarily held, as by structure disclosed in said'Federwit'z andiBailey ap lieation, Se-

l rial No. 40,769, until disen age by entrance machine tools.

thereinto of the form bloc structure which carries the .box downwardly into engagement with the-'wrapper and thence into coacting relation with the-various wrapping Chains' 120 an arefmounted respec- 4 tively,.on sprockets1`24,pairs of w ich are like.

carried at each end of the conveyor frames 125, Said chains may be equipped with any suitable type of anisms X. As shown however, grippers'X are of the character described in the aforesaid Federwitz and Bailey application, Se; rial No. 40,769, and comprise a plate bracket 126 carried by adjacent link pins of its supporting chain, said bracket forming a rotatable support for an edged wheel 127 or the Pivotedto one of said link p-ins is a member comprising an arm 128 and a palm 129. said member being biased in a clockwise direction as viewed in Fig. T by a spring or the like 129, Fig. 8. .Chains 120 and 120 each carry A a plurali-ty of the grippers X, pairs of which are in transverse alignment. The timing of the mechanism governing Y the intermittent movement of `chains 120 and 120*l is such that successivev pairs of the grippers X stopvwith their arms 128, respectively, in engagementwith the fixed cams 130 whereby the palms 129 are depressed and for an interval the gripper-s X remain stationary in open. position.

While thus open, a pair of transversely aligned grippers V on chains 11 and 11'L transport the forwardv edge of a coated tabbed Wrapper S between wheel 127 and palm 129, and, when substantially in the position indicated at the top of Fig. 7, arms 21 of grippers V engage abutments 25 whereupon the wrapper is released therefrom, movement of said grippers V continuing without pause until inthe osition indicated at the lower ri ht corner o Fig. 7.

After the forward e ge of the wrapper has been thus the arms 128 immediately receding from cams 130 whereby the wrapper-is gri ped between palms'129 and wheels 127. ere-j after, step-by-step .the tabbed coated wrapper is advanced toward thewrappingmachine W, other tabbed coated wrappers/being 'similarly fedb'y the grippers V into succeeding `Iairs of the grippersl X.

Finally, t e coated, tabbed wrap ers individually and in succession arrive eneath ,This isvtrue depite the fact that in the conveyor unit C 1 ment may be relatively slower t an whileY the wrappers are carried by chains 11 and e speed of wrap er move- 11. As well understood in the art, in the wrapping machine W, the boxes are wrapped in such manner that the tabs are applied around the box corners to thereby strengthen or' reinforce the wra ped structure.

To the end that t' e adhesive-applying wra'ppcr-gripplng mechositioned in grippers movement of chains and120 is initiated, f

unit G may be tripped or actuated at the proper times to cause a wrapper to be removedfrom stack 2, passed into engagement with the glue distributing roll 4 and delivered by pairs of t`he`grippers V intop'airs ot' the grippers X while the latter are open and waitingr at the receiving end of the conveyor unit C, a cam 131 is suitably positioned on shaft 1l!) which rotates but once during each cycle of operationof the wrapping unit lV. Cam 131, Fig. l, once t'or each c cle aforesaid, engages a roller 1212 carrier by a pivoted arm 133 to which is secured one end of a rod, link or the like 134, secured at its other end to an arm 135, controlling oscillatory movement of a shaft- 136 controlling the .tripping mechanism of the adhesive-applying unit G.

Although I have illustrated and described mechanism forapplyin tabs to an individual coated Wrapper atter passage thereof from the adhesive-applying mechanism, it shall be understood that my invention coinprehends structure for applying tabs to individual Wrappers before passage thereof from said adhesive-applying mechanism,

and more particularly, while stacked and before application of an adhesive coating to the Wrapper, one face of which, however, together with the ex osed tabfaces, should be immediately coate preferably b the'adhesive-applying mechanism, and tiereafter suitably conveyed to a desired region Where application to a box may be effected.

It shall also be understood that my invention is not to be restricted to the use ot' a conveying mechanism or the like for transferring the tabbed coated Wrapper to a wrapping machine, nor need the tabbinc or adhesive-applying mechanisms either singly or jointly be synchronized or connected to the wrapping machine. For example, my invention finds an important application in those eases Where the conveyor of the adhesive-applying mechanism delivers coated tabbed Wrappers in succession to the vicinity of a wrapping machine operating independently of the adhesive-applying mechanism, from whichA conveyor an operator may take the Wrappers one by one, register them on individual boxes and manually apply the box with the adhering wrapper to the wrappin machine form block structure.

'hat I claim is: y

1.` lVrapper-tabbing mechanism comprising means for coating an individual wrapper with adhesive, means for applying tabs tothe coated surface of the individual wrapper, and means for coating' the expzrscd faces of said tabs with adhesive before setting' of said first-mentioned adhesive coating.

2. lVrapper-tabbing mechanism comprising means for coating an individual wrapper -With adhesive, ivrapper-tabbimer and tahcoating mechanisms, and means for conveying the individual coated wrapper `into coacting relation successively with said mechanisms whereby tabs are ap )lied to the coated wrapper surfaceyand an adhesive coating applied to the eposed tab surfaces.

2l. lVrappcr-tabbinel mechanism comprisingl means t'or coatingr an 4individual wrapper with adhesive, wrapper-tabbing and tabcoa'ting mechanisms, and means for conveyin;lr the individual coated wrapper without pause into co-acting relation successively `.vith said mechanisms whereby tabsl are applied to the coated wra )per surface and an adhesive coating applic( to the exposed tab surfaces. c

,+L frapper-tabbing mechanism comprising' means `for coating an individual-wrapper with adhesive, means for applyingr tabs to the coated surface of the individual Wrapper, and stenciliircr means for coating" the exposed faces of said tabs with adhesive before setting of said first-mentioned adhesive coa ing.

lVrap iertabbingI mechanism comprising means for coatingr 'an individual wrapper withadhcsive, 'means for applyingr tabs to the coated surface ofthe individual wra per, and stencils successively engaging said tabs for applying adhesive thereto before setting of said first-mentioned adhesive coating.

6. lVrapper-tabbing mechanism comprising' means for coating an individual wrapper with adhesive, jmeans for ap lying tabs to the' coated surface of the individual wrapper, coating mechanism, and stencillingr means engaging said coating mechanism and the box-engaging tabbed faces in succession for applying an adhesive coating to the latter before setting of said first-mentioned adhesive coating.

llltl 7. lVrapper-tabbing mechanism comprising means for coating anY individual 'wrapper with adhesive, means for applying tabs' to the coated surface of the individual wrapper, and ftencilling means for coatingr the exposed faces of said tabs during movement of the wrapper. A

8. lVrapper-tabbing mechanism comprising.r means for coating an individual wrapper with adhesive, means for ap )lying tabs to the coatel surface of the individual wrapper, and movable stencilliniir means for coating the exposed faces of said tabs during movement of the wrapper.

9. rrapperltabbng mechanism comprising means for coating a Wrapper with adhesive, vvrapper-tabbinfir and tab-coating mechanisms. and means comprising a chain for conveying the coated iv 'apper into co-acting relation successively with said coating mechanisms `whereby tabs are applied' tothe. coated wrapper surface and an adhesive coating applied to the expoi'ed tab surfaces.

10. lVrapper-tabbing mechanism comprislltl ing means for coating a wra per with adhesive Wrapper-tabbing am tab-coating mechanisms, and means comprising a plurality of chains 'carrying' aligned wrapper grippers for conveying r the coated wrapper into cri-acting relation successively `with said coating mechanisms whereby tabs are applied to the coated wra iper surface and an adhesive coating applic surfaces.

y 11:..Box-wrapping mechanism comprising means' for securing tabs to an individual adhesive-coated Wrapper, and means for applying the wrapper and'tiibs to a box while the tabs are .so-ft or pliable lirs'icaiised by said adhesive.

12. Box-wrapping mechanism comprisingr means for securing tabs to an adhesive-coated wrapper, a wrapping machine, and means for conveying;r the tabbed wrapper into the path of the form block structure of said nifichine before material setting of saidIadhe-'- sive. l

13. Box-wrapping mechanism comprising' means for securing tabs to an adhesive-coated wrapper, `a wrapping, machine, and means comprising intermittently movable wrapper-conveying mechanism for transporting the tabbed wrapper into the ath of the form block structure of said mac ine before material setting of said adhesive.A n

14. Box-wrapping mechanism comprising means for securing tabs to ain adhesive-coated wrapper, a wrapping machine, and means timed with vsaid 'wrapping machine for conveying the tabbed wrapper into the ath of the form block structure of said mac line before material setting of said adhesive. i

15. Box-wrapping mechanism comprising means for securing tabs to an adhesive-coated wrapper, a wrapping machine, and means comprising wrapper-conveying mechanism intermittently movable in timed relation with said wrapping machine fortrans ortingthe tabbed wrapper into the ath o the form block structure of said mac line before material setting of said adhesive.

16. Box-wrapping mechanism comprising means for securing tabs toan adhesive-coated wrapper, a vH-apping machine, means for conveying a box into the path of the form block structure of said machine, and means for conveying the tabbed'wrapper into said path before material setting of said adhesive.

17.`Boxwrapping mechanism com rising.

means for securing tabs to a'n' a lesivecoated wrapper, a wrapping machine, means timed with said wrapping `r` machine 1for conveying a box into the mth of they form block structure of said iiiadhi'ne, and means like'- wisc timed.with said machine vfor conveyingr the tabbed wi'appeiginto saidpath before iiiatciial sett-ing of said adhesive.

-18. VVi'appcr-tabbing mechanism compristo the exposed tab surface'of said wrapper, means for coating the exposed faces ofsaid tabs with adhesive, and conveying mechanism receivin the coated tabbed wrapper from said tiibinir mechanism before material setting of sai first-mentioned 'adhesive coating.

41t). Wrapv er-tabbiiig mechanism comprising;r means or coating a wrapperwith adhesive, wrapper-tabbing and tab-coatin mechanisms, means for conveying the Vcoated wrapper into cio-acting relation successively with said mechanisms whereby tabs are applied to the coated wra per surface-and an adhesive coating applic to the exposed tab surfaces, and conveying mechanism receiving the coated 'tabbed wrapeper from said conve ing means before ma rial setting of said first-mentioned adhesive coating.A

20. VV'i'ap er-tabbing mechanism comprising means or coating a wraper with adhesive, wrapper-tabbing lan tab-continir mechanisms, means for conveying wrapper without pause into cio-acting i'elation successively Wirth said mechanisms whereby tabs are applied to the coated wrapper surface and an adhesive coating applied,

to the exposed tab surfaces, and conveying mechanism timed withsaid conveying means receiving the coated tabbed wrap i' `before material setting of said first-name vadhesive coating. i

21. The combination with a wrappin inachine, of wrapper-tabbing mechanism imed therewith for applyinga plurality of tabs toi individual wra pers., i

the coated 22.- The combination with a wiapping'machine, of wrapper-tabbing mechanism timedv therewith for applying tabs to moving in-4 dividual wrap ers in succession.

i 23. The com ination with a wrapping machine,l of wrapper-tabbing mechanism timed therewith for applyingtabs toindividual wi'apig adhesive'. V

24. The'combination with a wrapping machine, of wrapper-tabbing mechanism 'timed' therewith, means'for coating a'wrapper with adhesive, and ineens .for conveying the coated wrapper into enacting'y relation with said tabbing'mechanism.

rs, each having .a surface coated with 25. The combination with a wrappin malchine, of wrapper-.coating and ta hing mechanism time therewith, and means, likewise timed with said wrapping machine for conveying the coated wrapper from Said coating mechanism' 'into co-acting 'relation with said tabhingi,r mechanisms.'

26. The combination with a wrappingfmachine, of wrapper-coating, wrapper- 'bing' and tab-coating mechanisms timed there with, and means likewise timed with said wrapping machine for conveying the coated wrapper from said coating mechanism into co-acting relation with said wrapper-tabblng and tab-coating m-echanisms.

27. The combinationwith a wrapping machine, of wrapper-coating', wrapper-tabbing and tab-coating mechanisms timed therewith, means likewise timed with said vwrapping machine for conveying the coated wrapper from said coating mechanism into co-acting relation with said wrapper-tabbing and tab-coating mechanisms,fand conveying mechanism receiving the coated tabbed wrapper from said conveying means and transporting the same into the path of the form block structure of the wrapping machine.

28. The combination Witha wrappin machine, of wrapper-coatingy wrapper-ta hing and tab-coating mechanisms timedv therewith, means Ilikewise timed with said wrapping machine for conveying the coated` 4 wrapper from said coatin -mechaenism into co-actmg'relation with sai wrap er-tabbing and tab-coacting mechanisms, an conveying mechanism timed with the wrapping machine for receiving the coated tabbed wrapper from said conveying means' and transporting the same into the path'of the form block structure of the wrapping machine.

29. The combination with a wrapping machine, of wrapper-coating, wrapper-tabbing and tab-coating mechanisms timed therewith, means likewise timed with said wrap-` ping machine for conveying the coated wrapper from said coating mechanism into ico-acting relation with said wrapper-tabbing and tab-coating mechanisms, conveying mechanism timed with the wra per mac ine for receiving the coated tab wrapper from said conveying means and transportmg the same into the path of the form block structure of the wrapping machine, and means timed with the wra ping machine for conveying a box into sai path.

30. ln combination, mechanism for` a plying adhesive to individual wrappers 1n succession, means for appllying tabs to the individual wrappers, an a conveyorV for transporting the individual tabbed wrappers `to a region removed from said mechanism.

31. In combination. mechanism for applying adhesive to individual wrappers in succession. means for thereafter applying tabs lo the individual wrappers, and a conveyer for transporting the individual tabbed wrappers to a region removed from said mechanism.'

32. In combination, mechanism for applying adhesive to individual wrappers 1n succession, means for thereafter applyng tabs to the wrappers-means for coating the exposed faces of said tabs. and a conveyor for transporting the individual tabbed Wrappers to a region removed from said mec anism.

I 33. In combination, mechanism for applylng adhesive to Wrappers, means for applying tabs to the individual wrappers, a conveyor for transporting the tabbed individual wrappers to a 'region removed from said mecanism,rand means for coating the exposed faces of said tabs during movement of said conveyor.

34. In combination. mechanism for applying adhesive to Wrappers, means for applymg tabs to the individual wrappers, an endless conveyor for transporting the tabbed individual wrappers to a region removed from said mechanism, andmeansfor coating the exposed faces of said tabs during movement of said conveyor.4

35. The combination, with mechanism ,for applying adhesive to wrappers in succession, of means for tabbing wrappers' in succession', and conveyor structure for transporting the tabbed wrappers to a region removed from said mechanism before material setting of their adhesive coatings.

36. The combination with adhesive-appl ing mechanism, of means yfor applying ta s to wrappers in succession, means for coating the exposed faces of said tabs, and conveyor structure for transport-ing the tabbed wrappers to a region removed from said mechanism.'

37. .The combination with mechanism for a cplying an adhesive coating to an indiv1 ual wrapper, of means for tabbing the individual wrapper, and means for transporting the individual tabbed wrapper to a region removed from said mechanism.-

38. The combination with mechanism for applying an adhesive coating to an indivi ual wrapper. of means for tabbin the individual wrapper after application o said adhesive coating, and means for transporting the individual tabbed wrapper to a region removed from said mechanism.

39. The combination with mechanism for ap lying anadhesive coating to an indiv1 ual wrapper, of means for tabbing the individual wrapper, means for a plying an adhesive coating to the expose faces of the tabs, and means for transporting the individual tabbed wrapper to a region re-` moved from said mechanism.

40. VThe combination with mechanism for applying an adhesive coating to anindi` v1 ual wrapper, of means for tabbing the individual wrapper` and means for transporting the individual tabbed wrapper to a region removed from said mechanism before material setting of saidadhesive coatln il. The combination with mechanism4 for applying an adhesive coating to n n individual wrapper, of means for tabbmg the Lindividual wrapper after application of said adhesive coating, and means for transporting the individual tabbed wrapper to a region removed from said `mechanismbefore material setting ofsaid adhesive coating.

42. The combination with mechanism for applying Aan adhesive coating to 'an' individual Wrapper, of means for tabbing the individual wrapper, means for applyin an adhesive coating tothe exposed faces o the tabs, and means for transl'iorting the individual tabbed wrapper to a region removed from said mechanism before 'material setting of said first-named adhesive coating.

43. The combination with a Wrapping machine, of means for applying an adhesive coating to individual Wrappers in succession, means timed with said wrapping machine for' transporting the coated wra )pers into the path of the Wrapping mac ine Vform block structure, and means for tahbing the `wra pers before arrivalthereof in said path.

441? The combination with a wrapping machine. of meansfor applying an adhesiye coating to individual wrappers in succession,

means timed with said. wrapping machine for transporting` the coated Wrappers into the path of the wrapping lmachine form block structure, and means for tabhing the wrappers while passing toward the wrapping machine. i Y

45. The combination with a wrapping machine, of means for applying an adhesive coating to individual Wrappers in succession,

means timed with vsaid wrapping machine for transporting an individualwrapper into the path of theA wrapping machine' form block structure before material setting of the adhesive coating thereon, and means for tabbing said wrapper before the arrival thereof in said path.

46. The combination with a Wrapping machine, of means forapplying an adhesive coating to individual wrappers in succession, Vmeans timed with said wrapping machine for transporting an individual Wrapper into the path.0f the wrapping .machine form block structure` before material setting of' the 'adhesive coating thereon, means for t'abbing said Wrapper before thel arrival thereof in said path and means for coating with adhesive the exposed tab surfaces.

47. The combination with awrapping machine and means timed therewith for deregion removed from said coating melanie,l

and tabbing mechanism adjustable transversely of the path of said coated Wrappers for applying a plurality of tabs to individual wrappers. Y i

49. WrapPer-tabbing mechanism comprising means or coating individual wrappers with adhesive` means for conveying the in:

dividual coated Wrappers in succession to a region removed from said coating means,

and tahbing and tab-coating mechanisms adjustable transversely of the path of said.

coated wrappers for applying a plurality of tabsto individual wrappers, and an adhesive coating to the exposed tab surfaces.

50. frapper-tabbinfg mechanism comprising means. for coating individual Wrappers with adhesive` means for conveying the individual Coated w appers in succession'to a region removed irom said coatingmeans,

a supporting member, tabhing'mechanism 'carried thereby, and means said t-ahbing mechanism of said member.

' 51. Wrappexwtabbing mechanism comprisinn,r means for` coating individual wrappers with adhesive, means for conveying the in- `for adjusting clrcumferentially dividual coated' Wrappers in succession loa region removed from said coating means;

a supporting member, tabbing mechanism carried thereby` means for adJu-stmg said tabbing-lmechanism circumferentially of said n'iemhcr, aseeond supporting member, tahc'oatmg mechanism carried thereby, and

amsm ci renin fercntially thereof.

JOHN S. STOKES.

means for adjusting .said tab-coating mech! :lay

gion removed from said mechanism before material setting of said adhesive coating.

42. The combination with mechanism for applying an adhesive coating to 'an individual wrapper, of meansl for tabbing the individual Wrapper, means for applyin" an adhesive coating tothe exposed faces of.) the tabs, and means for transliorting the individual tabbed wrapper to a region removed from said mechanism before material setting of said first-named adhesive coating.

43. The combination with a wrapping machine, of means for applying an adhesive coating to individual wrappers in Succession, means timed with said wrapping machinc for' transporting the coated wra )pers into the path of the Wrapping mac me form block structure, and means for tabbing the wra pers before arrival thereof in said path.

41E The combination with a Wrapping machine. of means for applying an adhesive coating to individual wrappers in succession.

means timed with said Wrapping machine' for transporting the coated Wrappers into the path' of the wrapping machine form block structure, and means for tabbing the wrappers while passing toward the wrapping machine. y

45. The combination with a wrapping machine` of means for` applying an adhesive coating to individual wrappers in succession,A

for transportingr an individual Wrapper into the patlnof tlie wrapping machine form block structure before material setting ot the 'adhesive coating thereoin means' for tabbing Said wrapper before the'y iarrival thereof in said path and means for coating with adhesive the exposed tab surfaces.

4:7. The combination with awrapping machine and means timed therewith for dc- `V :Patent No. 1,611,693, granted p i i JOHN S.

It is hereby certified that error appears in the mentioned patent requiring correction as follows word. aligment 'readfalz'gnmen pagef,` .line 2, .hesive insert a comme.;r page 9, line 24, claim 28, enacting read tabfcoaing'.; and that the said Letters livering boxes in succession into the path of the wrapping machine form block structure, of means for applying an adhesive coating to individual wrappers in succession, means timed with said Wrapping machine for transporting the coated Wrappers into the path of the Wrapping machine form block structure, and means for tabbing the Wrappers While assing toward the Wrapping machine.

48. rapper-tabbing mechanism comprising means yfor coating individual wrappers with adhesive, means for conveying the individual coated Wrappers in succession to a region removed from said coating means, and tabbing mechanism adjustable transversely of the path of said coated wra pers for applying a pluralityof tabs to in ividual wrappers. l

49. VVrapFer-tabbing mechanism comprising means or coating'individual wrappers with adhesive, means for conveying the i111 dividual coated wrappers in succession to a region removed from said coating means,

and tabbing and tab-coating mechanisms adjustable transversely` of the path of said. coated Wrappers for applying a plurality of tabsto individual Wrappers, and an adhesive coating to the exposed tab surfaces.

50. Vrapper-tabbing mechanism comprising means for coating individual wrappers with adhesive. means for conveying the individual coated w appers in succession to a region removed irom said coating' means, a supportingr member, tabbing'mechanism 'carried thereby, and means for adjusting said tabbing mechanism circumferentially of said member. y

f 51. rapper-tabbing mechanism comprising means folT coating individual Wrappers with adhesive, means for conveying the individual goated Wrappers in succession toV a region removed from said coating means. a supporting member, tabbing mechanism carried thereby. means for adjusting said tabbingmechanislu circuinferentiali)v of said member, a :second supporting member, tabcoating mechanism carried thereby, and means for adjusting .said tab-coating mech-4 anism circun'iferentially thereof.

JOHN S. STOKES.

'Certicate of Correction. n

December 21,-1926, to

STKES.

tint/ed specification of the abovegage2, line 130, for the mi lled claim 10, after the sy lable for the compound word tab- Patont should be read with this correction 4therein that 'the same lmayconform to therecord o the case in the Patent Oice.

' signed and @andinia-1Std@ af Masch, A. yD. 1921.,

M.J. Moons, Acting of Patents. y

Certicate of Correction.

Patent No. 1,611,693, granted December 21, 1926, to

JOHN S. STOKES.

It is hereby certified that error appears ignV the grnted specification of the abovementioned patent requiring correction as follows: -age 2, line 130, for the miss lled word aligmenb Aread algmint; page, line 2, claim 10, after the sy labio .hesive insert a comma; page 9, line 24, claim 28, for the compound word tabcoacting read tab-codng; and that the said Letters Patent should be read with this correction therein that the same may-conform to the record of the case in the Patent Oice. 4

' Signed and sealed this 1st da)7 of March, A. D. 1927.

[mL] M. J. MOORE,

Acting onwnaioner of Patente. 

